Quest Diagnostics believes patient data was accessed in its Quanum LSM breach; the scope is still under investigation. Access is paused, while core operations and direct LIS/EMR ordering continue.

Quest Diagnostics building photograph, courtesy of Quest Diagnostics via MedTech Dive; this is an exterior company photograph, not a depiction of the breach.

Published 23 Oct 2026 · 04:40 UTC

Quest Diagnostics ↗ · Source dated 22 Oct 2026

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